Before leaving Hindustan East India Company divided South Asia into two parts, one part is called as India while other part is Pakistan. National language of Pakistan is "URDU" .
Origin of Urdu
It is a combination of several other languages that are well spoken and understood in Asia mainly Persian, Hindi and Turkish languages. Urdu is itself a Turkish word. In Pakistan lots of other languages are well spoken and understood but the main source of communication and connection among people of different areas of Pakistan is URDU.
Provincial Languages of Pakistan
In Pakistan there are four divisions that are called provinces and these provinces are geographically divided and has their own values and notable history many civilizations had ruled these provinces so because of this lots of languages are spoken and understood that varies from place to place. But every province has its one major language, which is considered, as the mother of all provincial languages like in Punjab Punjabi is the major language and other languages are saraieki, majhi, shahpuri, Rangari, potohari and others. In sindh major provincial language is sindhi. In sarhad pushtu is the provincial language while in balouchistan, balouchi is the provincial language and others are panjgori, kharani, chagai etc.